Clinical trial Recruiting at 1 site Observational Ages 18 and up

Optimizing blood flow in patients on veno-venous ECMO

Official title: Reduction of Blood Recirculation in Veno-Venous ECMO Through Ultrasound Dilution Measurements (ECMO Circulation Study)

Run by Charite University, Berlin, Germany · NCT04754854 · Data updated 2026-11-12

This study is testing if adjusting blood flow during ECMO treatment can help patients with severe breathing problems get better oxygen without needing as much blood flow.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment136 (estimated)
SponsorCharite University, Berlin, Germany
Academic / other
Locations1 site (Berlin)
StatusRecruiting
StartedNovember 20, 2020
Main results expectedAugust 31, 2026
Study endsOctober 31, 2026
Registry record updatedDecember 31, 2024
Trial IDNCT04754854 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 years or older who require veno-venous ECMO due to refractory hypoxemia from ARDS.

Probably not a fit

Patients who do not require veno-venous ECMO or those with conditions that preclude ECMO support may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to measure the recirculation fraction (Rf) of blood in patients with acute respiratory distress syndrome (ARDS) undergoing veno-venous ECMO. By utilizing an ultrasound dilution technique, the study will assess how optimizing ECMO blood flow based on Rf measurements can improve systemic oxygenation. The goal is to reduce ECMO blood flow without compromising patient oxygenation, potentially enhancing treatment outcomes for those on ECMO support.

Why it matters

Potential benefit: If successful, this approach could lead to improved oxygenation and reduced complications for patients on veno-venous ECMO.

How similar studies have gone: Previous studies, such as the 'Blood Recirculation and vvECMO' trial, have shown promising results in optimizing ECMO blood flow, suggesting that this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Patients aged 18 years or older requiring veno-venous ECMO for treatment of refractory hypoxemia in ARDS.

Where it's running

  • Charité - Universitätsmedizin Berlin, Campus Virchow Klinikum
    Berlin, Germany
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.